"""
Excel XLSX Generator
Erstellt Excel-Dateien mit openpyxl
"""

from openpyxl import Workbook
from openpyxl.styles import Font, PatternFill, Alignment
from pathlib import Path
from datetime import datetime


def create_example_excel():
    """Erstellt eine Beispiel-Excel-Datei mit formatierten Daten."""
    
    # Neues Workbook erstellen
    wb = Workbook()
    ws = wb.active
    ws.title = "Beispiel"
    
    # Überschriften hinzufügen
    headers = ["Name", "Alter", "Stadt", "Beruf"]
    ws.append(headers)
    
    # Überschriften formatieren
    header_fill = PatternFill(start_color="4472C4", end_color="4472C4", fill_type="solid")
    header_font = Font(bold=True, color="FFFFFF", size=12)
    
    for cell in ws[1]:
        cell.fill = header_fill
        cell.font = header_font
        cell.alignment = Alignment(horizontal="center", vertical="center")
    
    # Beispieldaten hinzufügen
    data = [
        ["Max Mustermann", 30, "Berlin", "Entwickler"],
        ["Erika Musterfrau", 28, "München", "Designerin"],
        ["Hans Schmidt", 35, "Hamburg", "Manager"],
        ["Anna Weber", 27, "Köln", "Analyst"],
    ]
    
    for row in data:
        ws.append(row)
    
    # Spaltenbreiten anpassen
    ws.column_dimensions['A'].width = 20
    ws.column_dimensions['B'].width = 10
    ws.column_dimensions['C'].width = 15
    ws.column_dimensions['D'].width = 15
    
    # Ausgabeverzeichnis erstellen
    output_dir = Path("output")
    output_dir.mkdir(exist_ok=True)
    
    # Datei speichern
    output_file = output_dir / f"example_{datetime.now().strftime('%Y%m%d_%H%M%S')}.xlsx"
    wb.save(output_file)
    
    print(f"Excel-Datei erfolgreich erstellt: {output_file}")
    return output_file


if __name__ == "__main__":
    create_example_excel()